.container {
    height: 100%; }
  
  .columns {
    height: 100%; }
  
  html, body {
    height: 100%;
    margin: 0; }
  
  a {
    color: #004ed0; }
  
  a:hover {
    color: #6d6d6d;
    text-decoration: none; }
  
  img {
    max-width: 100%;
    max-height: 100%; }
  